4 letters
- sers4
- sews7
- shaw9
- shea6
- shes6
- shew9
- shul8
- skas8
- skew11
- skua9
- slab8
- slaw8
- slew8
- slub9
- slue6
- slur6
- suba8
- subs8
- such10
- suck12
- suer5
- sues5
- sulk10
- sura5
- sure5
- swab10
- ukes9
- urbs8
- urea5
- ursa5
- user5
- uses5
- wabs10
- wack14
- waes7
- wake11
- wale8
- walk12
- ware7
- wark11
- wars7
- wash9
- wauk12
- waul9
- waur8
- weak11
- weal8
- wear7
- webs10
- weka11
- wuss8